diff --git a/bootrom/sdboot/sd.c b/bootrom/sdboot/sd.c
index ea817cb..158e7ed 100644
--- a/bootrom/sdboot/sd.c
+++ b/bootrom/sdboot/sd.c
@@ -160,7 +160,8 @@ static int copy(void)
 	int rc = 0;
 
 	dputs("CMD18");
-	kprintf("LOADING  ");
+	//~ kprintf("LOADING  ");
+	kprintf("READ: ");
 
 	REG32(spi, SPI_REG_SCKDIV) = (F_CLK / 20000000UL);
 	if (sd_cmd(0x52, 0, 0xE1) != 0x00) {
@@ -172,14 +173,18 @@ static int copy(void)
 		long n;
 
 		crc = 0;
-		n = 512;
+		//~ n = 512;
+		n = 50;
 		while (sd_dummy() != 0xFE);
 		do {
 			uint8_t x = sd_dummy();
-			*p++ = x;
-			crc = crc16_round(crc, x);
+			kputc(x);
+			//~ *p++ = x;
+			//~ crc = crc16_round(crc, x);
 		} while (--n > 0);
 
+		return 0;
+
 		crc_exp = ((uint16_t)sd_dummy() << 8);
 		crc_exp |= sd_dummy();
 
@@ -219,9 +224,6 @@ int main(void)
 	uint32_t counter = 0;
 	for(uint32_t* ram = RAMTEST_START; ram < RAMTEST_END; ++ram) {
 		*ram = counter++;
-		if((counter % 1024) == 0) {
-			kprintf("\r%lx", ram);
-		}
 	}
 
 	kprintf("\rChecking RAM...\n");
@@ -237,12 +239,20 @@ int main(void)
 			++correct;
 		}
 		++counter;
-		if((counter % 1024) == 0) {
-			kprintf("\r%lx", ram);
-		}
 	}
 	kprintf("\rSummary: %x matches, %x mismatches.\n", correct, wrong);
 
+	kprintf("\nTrying to read from SD card...\n");
+
+	kputs("POWERON");
+	sd_poweron();
+	kprintf("sd_cmd0: %hx\n", sd_cmd0());
+	kprintf("sd_cmd8: %hx\n", sd_cmd8());
+	kprintf("sd_acmd41: %hx\n", sd_acmd41());
+	kprintf("sd_cmd58: %hx\n", sd_cmd58());
+	kprintf("sd_cmd16: %hx\n", sd_cmd16());
+	kprintf("\ncopy: %hx\n", copy());
+
 	while(1) {
 		//uint8_t dip_value = GPIO_REG(GPIO_INPUT_VAL) & 0b01111111;
 		//kprintf("dip value: %hx, ram value: %c\n", dip_value, ram[dip_value]);